ASTM A249 / A249M Welded Stainless Steel Tubes for Boiler, Superheater, Heat-Exchanger and Condenser
ASTM A249 A249M ASME SA249 TP304 TP304L TP316 TP316L Seamless stainless tubes is for Steel Boilers, Superheaters, Heat exchangers and Condenser.
ASTM A249 / A249M Covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels listed in standard, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes.
ASTM A249 / A249M ASME SA249 Stainless Steel tubes Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H are modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended for high-temperature service such as for superheaters and reheaters.
ASTM A249 / A249M ASME SA249 tubing sizes and thicknesses usually furnished to this specification are 1⁄8 in. [3.2 mm] in inside diameter to 12 in. [304.8 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to 8.1 mm], inclusive, in wall thickness. Tubing having other dimensions may be furnished, provided such tubes comply with all other requirements of this specification.
Standard:
ASTM A249/A249M, ASME SA249.
Description Name:
ASTM A249 welded stainless tubes, ASTM A249 stainless welding tubes, Stainless welded tubes, TP304 welded stainless tubes, TP316/TP316L welded tubes. Stainless welded heat exchanger tubes, Stainless welded Condenser tubes, Stainless welded Boiler tubes, austenitic stainless-steel tubes, stainless boiler tubes, stainless condenser tubes, stainless heat exchanger tubes, stainless steel tube, stainless superheater tubes, temperature service applications, welded steel tube and heavily cold worked (HCW) tubes.
Size:
1/8” to 24” (10.3mm to 610mm)
Click to download the details of ASTM A249 Stainless Steel Tubes.
Schedules:
10s, 20, 40s, 40, 60, 80s
Wall Thickness: 1mm to 40mm
Grade | Specification |
Stainless 304/304L, 304/304H | ASTM A249/SA249 |
Stainless 309S | ASTM A249/SA249 |
Stainless 310S | ASTM A249/SA249 |
Stainless 316/316L, 316/316H | ASTM A249/SA249 |
Stainless 317/317L | ASTM A249/SA249 |
Stainless 321/321H | ASTM A249/SA249 |
Stainless 347/347H | ASTM A249/SA249 |
Shape: Round
Length:
Single random length/ Double random length or as customer’s actual request
Max length 25000mm.
Referenced Documents:
ASTM Referenced Standards.
A262 Practices for Detecting Susceptibility to Intergranular- lar Attack in Austenitic Stainless Steels.
A480 / A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip.
A1016 / A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes.
E112 Test Methods for Determining Average Grain Size.
E213 Practice for Ultrasonic Examination of Metal Pipe and Tubing.
E273 Practice for Ultrasonic Examination of the WeldZone of Welded Pipe and Tubing.
E527 Practice for Numbering Metals and Alloys in the.Unified Numbering System (UNS).
Chemical Composition:
Grade | UNS Design |
Composition, % | ||||||||||||||
C | Mn | P | S | Si | Cr | Ni | Mb | Ti | Nb | N | Cu | Ce | B | Al | ||
TP304 | S30400 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 8.0–11 | . . . | . . . | . . . | . . . | . . . | . . . | ||
TP304L | S30403 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 8.0–13 | . . . | . . . | . . . | . . . | . . . | . . . | ||
TP304H | S30409 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 8.0–11 | . . . | . . . | . . . | . . . | . . . | . . . | ||
TP310S | S31008 | 0.08 | 2 | 0.045 | 0.03 | 1 | 24.0- 26 | 19.0- 22 | 0.8 | . . . | . . . | . . . | . . . | . . . | ||
TP310H | S31009 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 24.0–26 | 19.0–22 | . . . | . . . | . . . | . . . | . . . | |||
TP310H | S31035 | 0.04 – 0.1 | 0.6 | 0.025 | 0.015 | 0.4 | 21.5–23.5 | 23.5–26.5 | . . . | . . . | 0.40- 0.6 | 0.20- 0.3 | 2.5- 3.5 | . . . | 0.002- 0.008 | |
TP316 | S31600 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16.0–18 | 10.0–14 | 2.00–3 | . . . | . . . | . . . | . . . | . . . | ||
TP316L | S31603 | 0.035 | 2 | 0.045 | 0.03 | 1 | 16.0–18 | 10.0–14 | 2.00–3 | . . . | . . . | . . . | . . . | . . . | ||
TP316H | S31609 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 16.0–18 | 10.0–14 | 2.00–3 | . . . | . . . | . . . | . . . | . . . | ||
TP317 | S31700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 11.0–15 | 3.0–4 | . . . | . . . | . . . | . . . | . . . | ||
TP317L | S31703 | 0.035 | 2 | 0.045 | 0.03 | 1 | 18.0–20 | 11.0–15 | 3.0–4 | . . . | . . . | . . . | . . . | . . . | ||
TP321 | S32100 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–12 | . . . | Ti 5 × (C+N) min, 0.70 max | . . . | 0.1 | . . . | . . . | ||
TP321H | S32109 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–12 | . . . | 4(C+N) min; 0.70 max | . . . | 0.1 | . . . | . . . | ||
TP321H | S32654 | 0.02 | 2.0-4 | 0.03 | 0.005 | 0.5 | 24.0–25 | 21.0–23 | 7.0-8 | . . . | . . . | 0.45- 0.55 | 0.30-0.6 | . . . | ||
TP321H | S33228 | 0.04 – 0.08 | 1 | 0.02 | 0.015 | 0.3 | 26.0–28 | 31.0–33 | . . . | . . . | 0.60- 1 | . . . | . . . | 0.05 – 0.1 | 0.025 | |
TP321H | S34565 | 0.03 | 5.0-7 | 0.03 | 0.01 | 1 | 23.0–25 | 16.0–18 | 4.0-5 | . . . | 0.1 | 0.40- 0.6 | . . . | . . . | ||
TP347 | S34700 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–13 | . . . | . . . | See Spec | . . . | . . . | . . . | ||
TP347H | S34709 | 0.04 – 0.1 | 2 | 0.045 | 0.03 | 1 | 17.0–19 | 9.0–13 | . . . | . . . | See Spec | . . . | . . . | . . . | ||
TP348 | S34800 | 0.08 | 2 | 0.045 | 0.030 | 1 | 17.0–19 | 9.0–13 | . . . | . . . | . . . | . . . | . . . | . . . | Co 0.20, Ta 0.10 | |
TP348H | S34809 | 0.04-0.10 | 2 | 0.045 | 0.030 | 1 | 17.0–19.0 | 9.0–13 | . . . | . . . | . . . | . . . | . . . | . . . | . . . | Co 0.20, Ta 0.10 |
Heat Treatment Requirements
Grade | UNS Designation |
Heat Treat Type | Austenitizing/ Solutioning Temperature, min or range °F [°C] | Cooling Media | ASTM Grain Size No. B |
TP304 | S30400 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP304L | S30403 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP304H | S30409 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
TP309S | S30908 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP309H | S30909 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
TP310S | S31008 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP310H | S31009 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
TP316 | S31600 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP316L | S31603 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP316H | S31609 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | 7 |
TP317 | S31700 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP317L | S31703 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP321 | S32100 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP321H | S32109 | Solution treatment | cold worked:2000[1100] hot rolled: 2050 [1120]H | water or another rapid cool | 7 |
TP347 | S34700 | Solution treatment | 1900 °F [1040 °C] | water or another rapid cool | . . . |
TP347H | S34709 | Solution treatment | 2000°F [1100] | water or another rapid cool | 7 |
Tensile Requirements
Grade | UNS | Tensile Strength, Min ksi [MPa] | Yield strength, min ksi [MPa] | Elongation in 2 in. or 50 mm, min, %A, B | Hardness, Max | |
Designation | Brinell/Vickers | Rockwell | ||||
TP304 | S30400 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP304L | S30403 | 70 [485] | 25 [170] | 35 | 192HBW/200Hv | 90HB |
TP304H | S30409 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP304N | S30415 | 80 [550] | 35 [240] | 35 | 192HBW/200Hv | 90HB |
TP310S | S31008 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP310H | S31009 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP316 | S31600 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP316L | S31603 | 70 [485] | 25 [170] | 35 | 192HBW/200Hv | 90HB |
TP316H | S31609 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP316Ti | S31635 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP317 | S31700 | 75 [515] | 30 [205] | 34 | 192HBW/200Hv | 90HB |
TP317L | S31703 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP321 | S32100 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP321H | S32109 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP347 | S34700 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
TP347H | S34709 | 75 [515] | 30 [205] | 35 | 192HBW/200Hv | 90HB |
Flattening Test
One flattening test shall be made on specimens from each end of one finished tube, not the one used for the flaring test, from each lot.
Flange Test
One flange test shall be made on specimens from each end of one finished tube, not the one used for the flattening test, from each lot.
Reverse-Bend Test
One reverse-bend test shall be made on a specimen from each 1500 ft [450 m] of finished tubing.
Hydrostatic or Nondestructive Electric Test
Each tube shall be subjected to either the hydrostatic or the nondestructive electric test. The purchaser may specify which test is to be used.
Grain Size
Grain size determinations on grades TP309H, TP309HCb, TP310H and TP310HCb shall be made on the same number of tubes as prescribed for the flattening test.
Markings
In addition to the marking prescribed in Specification A 1016/A 1016M, the marking for Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP316H, TP321H, TP347H, and TP348H shall also include the heat number and the heat-treatment lot identification.
Note:
- Mill test certificates will be issued according to EN10204.3.
- All tubes shall be supplied as per applicable ASTM A249 /A249M Specification.
Packing and Marking
- Packed in bundles or ply wooden box wrapped in plastic, and suitably protected for sea-worthily delivery or as requested.
Packing photos:
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